www.murata-ps.com OBSOLETE WPC10 Series 10W 0W R Regulated 2:1 Wide ide Input Range DC/DC Converter Order Code Nominal Output Output Current Voltage Regulation Input Noise Voltage Min Rated Line Load Voltage Load Load V V mA mA ± ± mVpp WPC10R24S05C WPC10R24S12C WPC10R24D15C Efficiency SELECTION GUIDE Recommended Alternative % NPH10S2405IC NPH10S2412IC BWR-15/575-D24A-C Obsolete, recommended alternative: (click to view data sheets) INPUT CHARACTERISTICS Parameter Conditions Voltage range Reflected ripple current Continuous operation Min. Typ. Max. Units 18 24 20 36 50 V mAp-p Min. Typ. Max. Units 10 W % %/ºC FEATURES OUTPUT CHARACTERISTICS RoHS compliant Safety approval (cULus) Meets EN55022 level A & B for conducted Emissions with a 10 micro farad external capacitor Industry standard pinouts Industry standard package Low profile 0.4 inch (10mm) Parameter Conditions Rated Power Voltage set point accuracy Temperature coefficient Line regulation Load regulation Ripple & noise Singles Duals Singles Min load to rated load Duals BW = 5Hz to 20MHz Low line to high line Short circuit protection ABSOLUTE MAXIMUM RATINGS Temperature shutdown Output short circuit protection Internal power dissipation Maximum case temperature DESCRIPTION The WPC10 series is a family of DC/DC converters that offer regulated outputs over an input voltage range 18 - 36V and over a wide specification case temperature range of -40°C to +100°C. The 350kHz switching frequency and forward converter topology provide optimum performance in a space-saving package. The design uses all surface mounted components, including magnetics, to provide enhanced reliability. All models will operate under very low load conditions, although the minimum load is required to guarantee full parametric functionality. A metal package is utilized for decreased radiated noise. The product range has been recognised by Underwriters Laboratory (UL) to UL 1950 for operational insulation, file number E179522 applies. 60Hz, 10 seconds 75 mVp-p Min. Max. Units Vpk GΩ pF μArms 10 1500 100 VISO = 240VAC, 60Hz Min. Specification (ambient) Case temperature Storage -40 -40 -55 GENERAL CHARACTERISTICS Parameter Conditions Min. MIL-HDBK-217F Ground benign Typ. 1500 TEMPERATURE CHARACTERISTICS Parameter Conditions Switching frequency MTTF % Continuous 2.5W +110ºC ISOLATION CHARACTERISTICS Parameter Conditions Isolation test voltage Resistance Capacitance Leakage current ±1 ±0.02 ±0.2 ±0.2 ±0.2 ±0.5 Typ. Typ. 350 933 Max. Units 71 100 125 ºC Max. Units KHz KHr All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_WPC10.D01 Page 1 of 3 WPC10 Series 10W Regulated 2:1 Wide Input Range DC/DC Converter THERMAL DERATING CURVE TECHNICAL NOTES ISOLATION VOLTAGE ‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage, applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions WPC10 series of dc/dc converters are all 100% production tested at their stated isolation voltage. This is 1500V Vpk for 10 seconds. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” The WPC10 series has been recognized by Underwriters Laboratory, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to safety standard requirements. REPEATED HIGH-VOLTAGE ISOLATION TESTING It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construction and environment. While manufactured parts can withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage. FUSING The WPC10 series DC/DC converter may be optionally fused with a 2A fuse. The input must be SELV or TNV according to EN60950/IEC950. UL recognition was obtained without an input fuse. RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260ºC for 10 seconds. The pin termination finish on this product series is UNS C36000 brass plated with matte tin 100 micro-inches min., over nickel, 40-80 micro-inches. The series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_WPC10.D01 Page 2 of 3 WPC10 Series 10W Regulated 2:1 Wide Input Range DC/DC Converter MECHANICAL DIMENSTIONS .415 [10.54] PIN CONNECTIONS .230 [5.84] MIN .020 [0.51] SIDE VIEW 1.000 [25.40] .900 [22.86] 4 1 .600 [15.24] 5 Singles Duals 1 +VIN +VIN 2 -VIN -VIN 4 +VOUT +VOUT 5 No pin Common 6 -VOUT -VOUT .500 [12.70] 2 .400 [10.16] Function Pin 6 .100 [2.54] 2.000 [50.80] 1.400 [35.56] .600 [15.24] .000 [0.00] .000 [0.00] BOTTOM (PIN SIDE) VIEW Weight: 35g (Typ.) All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position. Unless otherwise stated all dimensions are in inches (mm) ±0.01 (0.25). Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2012 Murata Power Solutions, Inc. www.murata-ps.com/locations KDC_WPC10.D01 Page 3 of 3